摘要
小型起垄施肥机在正常行驶进行施肥作业时的振动不仅会导致机具零部件受损与寿命降低,还会影响施肥精度。为研究小型起垄施肥机工作的振动情况,测量其不同部位的振动量。对测得的原始信号进行小波降噪处理并做相干性分析,发现小型起垄施肥机在排肥管处振动频率为110Hz,小型起垄施肥机在刚启动时的振动频率低于正常工作频率,在小型起垄施肥机的排肥管处的振动分析中,发动机的影响要大于车轮的影响,两者的共同对排肥管的影响接近于1,扶手处的振动信号频率峰值比较分散,且来自车轮的影响要大一些。
Vibration of a small-ridge fertilizing machine during fertilization operation of normal driving will not only cause damage to machine parts and reduce service life,but also affect the accuracy of fertilization.In order to study the vibration of the small ridging and fertilizing machine,the vibration of different parts was measured.Perform wavelet denoising processing and coherence analysis on the measured original signal.The vibration frequency of the small ridge fertilizing machine at the fertilizer pipe is 110 Hz.The vibration frequency of the small ridge fertilizing machine at the beginning is lower than the normal working frequency.In the vibration analysis at the fertilizer pipe of the small ridge fertilizing machine,the impact of the engine is greater than that of the wheels.The combined impact of the two on the fertilizer pipe is close to 1.The frequency peaks of the vibration signal at the handrails are relatively scattered,and the impact from the wheels is greater.
作者
曲龙龙
吴雪梅
张康
符德龙
Qu Longlong;Wu Xuemei;Zhang Kang;Fu Delong(School of Mechanical Engineering,Guizhou University,Guiyang 550025,Guizhou,China;Bijie City Branch of Guizhou Tobacco Company,Bijie 551700,Guizhou,China)
出处
《农业装备与车辆工程》
2023年第2期30-34,共5页
Agricultural Equipment & Vehicle Engineering
基金
贵州省农业产业技术体系建设专项经费资助,贵州省烟草公司毕节市公司科技项目“基于微耕机平台的起垄机与电动覆膜机研发与应用”(2021520500240048)。
关键词
施肥机
振动信号
小波降噪
傅里叶变换
相关性分析
fertilizer applicator
vibration signal
wavelet noise reduction
Fourier transform
correlation analysis
